CN211111186U - Ion exchanger for leachate treatment - Google Patents
Ion exchanger for leachate treatment Download PDFInfo
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- CN211111186U CN211111186U CN201921545191.4U CN201921545191U CN211111186U CN 211111186 U CN211111186 U CN 211111186U CN 201921545191 U CN201921545191 U CN 201921545191U CN 211111186 U CN211111186 U CN 211111186U
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Abstract
The utility model discloses an ion exchanger for treating percolate, which comprises a shell, a water inlet arranged at the top of the shell and a water outlet arranged at the bottom of the shell, the shell comprises a backwashing layer, a grease pressing layer, a resin layer and a leakage-proof layer which are arranged in sequence, the backwashing layer is used for the inflow of impurities during backwashing, the leakage-proof layer prevents the resin in the resin layer from leaking outside, a liquid discharge pipe for discharging the regeneration liquid is arranged between the grease pressing layer and the resin layer, the top in the shell is provided with a water inlet device connected with the water inlet, the water inlet device comprises a water inlet pipe and a plurality of water outlet pipes arranged at the bottom end of the water inlet pipe, each water outlet pipe is communicated with the water inlet pipe, the surface of each water outlet pipe is provided with a plurality of water outlets, residual ammonia nitrogen in the percolate is adsorbed by ion exchange, the effluent standard can reach the A standard of the primary standard of pollutant discharge standard of urban sewage treatment plants.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment device technique and specifically relates to a what relate to is an ion exchanger for filtration liquid is handled.
Background
Nowadays, the annual output of urban garbage in China exceeds 1.4 hundred million tons, the urban garbage is increased at a speed of about 10% every year, and the daily garbage output per capita exceeds 1 kg;
meanwhile, the landfill method also becomes the main treatment mode of the garbage in China, and a large amount of garbage percolate is formed by soaking surface water and underground water due to fermentation and rainfall scouring of the garbage in the landfill process. The composition of landfill leachate is very complex, and the composition of leachate and the concentration of pollutants change as the service life of a landfill is prolonged. The landfill stock leachate is generally aged landfill leachate and has the characteristics that: the B/C ratio is low, the nutrition proportion is disordered, the metal ion concentration is not high, and the ammonia nitrogen concentration is high. Because the biodegradability of the aged percolate is not high, the biological treatment method is less;
the application of reverse osmosis membrane treatment technology is wider and wider. However, due to the high ammonia nitrogen concentration, the effluent of the DTRO system can not reach the A standard of the primary standard of pollutant discharge Standard of urban wastewater treatment plant, so that an efficient and reasonable post-treatment method for removing ammonia nitrogen is required to be found, and the effluent of the whole treatment system can be ensured to reach the treatment standard.
At present, ion exchange can be carried out through an ion exchanger to remove ammonia nitrogen in leachate, but the removal effect of the existing ion exchanger on ammonia nitrogen is not ideal and still cannot reach the A standard discharge standard of the first-class standard of pollutant discharge standard of urban sewage treatment plants.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide an ion exchanger for filtration liquid is handled.
In order to achieve the above object, the technical solution of the present invention is: the ion exchanger for treating the percolate comprises a shell, a water inlet and a water outlet, wherein the water inlet is formed in the top of the shell, the water outlet is formed in the bottom of the shell, the back flushing layer, a grease pressing layer, a resin layer and a leakage-proof layer are sequentially arranged in the shell, impurities flow in during backwashing, the grease pressing layer enables inlet water to uniformly act on the surface of the resin layer and can press resin in the resin layer, the leakage-proof layer prevents the resin in the resin layer from leaking outwards, a liquid discharge pipe for discharging regenerated liquid is arranged between the grease pressing layer and the resin layer, a water inlet device connected with the water inlet is arranged at the top in the shell and comprises a water inlet pipe and a plurality of water discharge pipes arranged at the bottom end of the water inlet pipe, each water discharge pipe is communicated with the water inlet pipe, and a plurality of water discharge ports are formed in the surface.
Preferably, the resin layer is filled with any one of T-42H ammonia nitrogen removal resin, L SI-010 ammonia nitrogen removal resin and 001x8 strong acid cation exchange resin.
Preferably, the filter medium is filled in both the grease pressing layer and the leakage-proof layer.
Preferably, the bottom in the shell is provided with a water expansion plate, the water expansion plate is provided with a plurality of drain holes, and the longitudinal section of the water expansion plate is arc-shaped.
Through adopting foretell technical scheme, the beneficial effects of the utility model are that: the inlet water can be uniformly sprayed into the resin layer through the drain pipe in the water inlet device, and then the ammonia nitrogen is removed through ion exchange resin, so that the ammonia nitrogen removal effect is good, and the standard A of the first-level standard of pollutant discharge Standard of urban wastewater treatment plants can be achieved; meanwhile, the filtering medium is filled in the resin pressing layer and the leakage-proof layer, so that impurities can be filtered, and meanwhile, the leakage and the random entering of ion exchange resin in the resin layer can be prevented.
Drawings
FIG. 1 is a schematic view of an ion exchanger according to the present invention;
fig. 2 is a bottom view of the water inlet device of the present invention.
Description of the main reference numerals: the device comprises a shell 1, a water inlet 2, a water outlet 3, a back flushing layer 4, a grease pressing layer 5, a resin layer 6, a leakage-proof layer 7, a liquid discharge pipe 8, a water inlet device 9, a water inlet pipe 91, a water discharge pipe 92, a water discharge port 10, a water expansion plate 11 and a water discharge hole 12.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-2, the ion exchanger for treating leachate comprises a housing 1, a water inlet 2 disposed at the top of the housing 1, and a water outlet 3 disposed at the bottom of the housing 1, wherein the housing 1 includes a back washing layer 4, a grease pressing layer 5, a resin layer 6, and a leakage-proof layer 7, which are sequentially arranged, the back washing layer 4 is used for inflow of impurities during back washing, the grease pressing layer 6 uniformly applies inflow water on the surface of the resin layer 6 and can press the resin in the resin layer 6, the leakage-proof layer 7 prevents the resin in the resin layer 6 from leaking out, a liquid discharge pipe 8 for discharging regenerated liquid is disposed between the grease pressing layer 5 and the resin layer 6, a water inlet device 9 connected with the water inlet 2 is disposed at the top of the housing 1, the water inlet device 9 comprises a water inlet pipe 91 and a plurality of water discharge pipes 92 disposed at the bottom end of the water inlet pipe 91, each water discharge pipe 92 is, the surface of each drain pipe 92 is provided with a plurality of water outlets 10 for uniformly spraying the inlet water.
The resin layer 6 is filled with any one of T-42H ammonia nitrogen removal resin, L SI-010 ammonia nitrogen removal resin, 001x8 strong acid cation exchange resin and the like.
The filter medium is filled in the grease pressing layer 5 and the leakage-proof layer 7.
The bottom in the shell 1 is provided with a water diffusion plate 11, the water diffusion plate 11 is provided with a plurality of water discharge holes 12, and the longitudinal section of the water diffusion plate 11 is arc-shaped.
Example 1
Taking old landfill leachate of a certain landfill as an example, the water quality of the landfill leachate is 3831.4 mg/L, the water quality of the produced water after pretreatment and two-stage DTRO membrane system is 38.31 mg/L, the produced water of the membrane system firstly enters an ion exchanger from a water inlet 2 and flows into a water outlet pipe 92 through a water inlet pipe 91, the produced water of the membrane system can be sprayed out from each water outlet 10 due to the fact that a plurality of water outlets 10 are arranged on the water outlet pipe 92 and the directions of the water outlets 10 are irregular, the produced water of the membrane system is wider in range and more uniform when sprayed out, the produced water of the membrane system uniformly enters a membrane pressing layer 5, a filtering medium (such as quartz sand) is filled in the membrane pressing layer 5, impurities can be further filtered, the produced water can uniformly enter a resin layer 6 from the membrane pressing layer 5, the ion exchange resin can be prevented from being disorderly filled and leaking in the membrane system during backwashing, T-42H ammonia removal nitrogen resin is filled in the resin layer 6, RB ions and the ion exchange resin can be adsorbed at the ion generation positions, and the RB can be exchanged, and the specific reaction process can be carried out, and the reaction process4 +→R-NH4+B+The leachate after ion exchange treatment is discharged through the water outlet 3, when the ion exchanger needs to be backwashed, a backwash liquid is sprayed from the water outlet 3, the backwash liquid passes through the water expansion plate 11, the spraying area of the backwash liquid can be enlarged, the backwash liquid uniformly enters each layer for backwashing, finally flows into the backwash layer 4 and is discharged from the water inlet 2, the quality of the produced water of the membrane system discharged through the water outlet 3 is detected, the ammonia nitrogen is 8.75 mg/L, and the detection data can show that the leachate can reach the A standard of the first-level standard of pollutant discharge standard of urban sewage treatment plants through the adsorption of ammonia nitrogen remained in the leachate by ion exchange, and the leachate can be normally discharged or recycled;
the above-mentioned, only preferred embodiments of the present invention are described, the scope of the present invention cannot be limited, and all the equivalent changes and decorations made according to the claims of the present invention should still fall within the scope covered by the present invention.
Claims (4)
1. An ion exchanger for treating percolate comprises a shell, a water inlet arranged at the top of the shell and a water outlet arranged at the bottom of the shell, it is characterized in that the interior of the shell comprises a back washing layer, a grease pressing layer, a resin layer and a leakage-proof layer which are arranged in sequence, the back washing layer is used for the inflow of impurities during back washing, the grease pressing layer uniformly acts the inlet water on the surface of the resin layer and can press the resin in the resin layer, the leakage-proof layer prevents the resin in the resin layer from leaking outside, a liquid discharge pipe for discharging the regeneration liquid is arranged between the grease pressing layer and the resin layer, the top in the casing is equipped with the water installations who is connected with the water inlet, water installations includes the inlet tube and sets up a plurality of drain pipes in the inlet tube bottom, each the drain pipe all communicates with each other with the inlet tube, each the drain pipe surface all is equipped with a plurality of outlet, can evenly spout the intaking.
2. The ion exchanger for leachate treatment as claimed in claim 1, wherein the resin layer is filled with any one of T-42H ammonia nitrogen removal resin, L SI-010 ammonia nitrogen removal resin, 001x8 strong acid cation exchange resin.
3. The ion exchanger for leachate treatment according to claim 1, wherein both the pressed fat layer and the leakage prevention layer are filled with a filter medium.
4. The ion exchanger for leachate treatment according to claim 1, wherein a water diffusion plate is disposed at the bottom of the housing, the water diffusion plate is provided with a plurality of water discharge holes, and the longitudinal cross section of the water diffusion plate is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545191.4U CN211111186U (en) | 2019-09-17 | 2019-09-17 | Ion exchanger for leachate treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545191.4U CN211111186U (en) | 2019-09-17 | 2019-09-17 | Ion exchanger for leachate treatment |
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| Publication Number | Publication Date |
|---|---|
| CN211111186U true CN211111186U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921545191.4U Active CN211111186U (en) | 2019-09-17 | 2019-09-17 | Ion exchanger for leachate treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117326637A (en) * | 2023-08-31 | 2024-01-02 | 惠州金茂源环保科技有限公司 | Ion exchange resin tank and regeneration treatment method thereof |
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2019
- 2019-09-17 CN CN201921545191.4U patent/CN211111186U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117326637A (en) * | 2023-08-31 | 2024-01-02 | 惠州金茂源环保科技有限公司 | Ion exchange resin tank and regeneration treatment method thereof |
| CN117326637B (en) * | 2023-08-31 | 2024-04-26 | 惠州金茂源环保科技有限公司 | Ion exchange resin tank and regeneration treatment method thereof |
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